文献类型：会议论文

英文题名：A Study on Analysis of Long Span Continuous Rigid Frame Bridge

作者：Xu, Guihong Yang, Bin Chen, Chuang Wei, Shirong Li, Zhenxue

第一作者：徐桂弘

通信作者：Xu, Guihong

机构：[1] Guizhou Institute of Technology, GuiYang, GuiZhou, 550001, China; [2] China Communications Technology Co. Ltd., Beijing, 100121, China; [3] Xingtai Zhengyang Building and Installation Co. Ltd., Xingtai, Hebei, 054500, China

第一机构：贵州理工学院

会议论文集：2019 International Conference on Advanced Material Research and Processing Technology, AMRPT 2019

会议日期：July 19, 2019 - July 21, 2019

会议地点：Wuhan, China

语种：英文

外文关键词：Creep - Deflection (structures) - Prestressed concrete - Railroad plant and structures - Railroad transportation - Rigidity - Shrinkage - Steel beams and girders - Stiffness

年份：2019

摘要：A case study of a large span pre-stressed concrete continuous rigid frame bridge (Ba-Mao-Chong bridge) of GUI DU high speed railway. Finite element program Midas/Civil is used to simulate the construction process and operation phase, the influence of concrete overweight, pre-stressing loss, concrete shrinkage and creep, stiffness loss and other factors that related the long-term deflection of bridge are analyzed. The calculation results show that: (1) The overweight concrete and Bridge deck pavement construction error could cause the bridge long-term deflection increases. (2) The creep coefficient, environment humidity, and other factors on the bridge have significantly influence on long-term mid-span deflection, (3) The beam stiffness reduction could lead to the bridge long-term mid-span deflection increase. ? 2019 Published under licence by IOP Publishing Ltd.